MEASUREMENT OF DYNAMIC PROPERTIES OF VISCOELASTIC MATERIALS
An improved method of measurements of dynamic properties of elastomers is proposed.The method is based on the analysis of forced oscillation of a cylindrical specimen loaded with inertial mass.No special equipment or instrumentation other than the ordinary vibration measurement apparatus is required.For accurate calculation of the properties,a two-dimensional model of cylindrical sample deformation was used. A new method of determining the dynamic Poissons ratio based on measuring the dynamic strain and shear deformations of two samples manufactured of the same material is proposed.The numerical calculations of form factor were carried out for static and dynamic strain and shear deformations of a cylindrical sample.Empiric analytic formulas useful for practical applications in the wide region of Poissons ratio,radius-to-height ratio and the loss tangent as well as for a variety of modules of elasticity,densities and heights of the samples are proposed.
method of measurement Poissons ratio form factor
V.M.Kulik A.V.Boiko I.Lee H.H.Chun
Institute of Thermophysics,Siberian Branch of the Russian Academy of Science Pr.Lavrentjeva,1,630090 Institute of Theoretical and Applied Mechanics SB RUN,Novosibirsk,Russia. ASERC,Pusan National University,Busan 609-735,Korea.
国际会议
第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)
安徽黄山
英文
1412-1415
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）